Two of my buddies have 05'S and this was the first year with the remote start. They have both had battery issues over the summer. Mine is an 04, with no remote start and Iv'e only changed the battery once, they change it every year. The remote start is always on, kinda, it's always looking for that signal. I think as long as you unhook the battery over the summer, and charge it in the fall, they will last alot longer. I have 8000 mioles on mine with no valve adjustments. My dealer says if its not noisy dont worry about it, but I'm going to check it before I ride this year.